1 General
Installation and commissioning by qualified per-
sonnel only!
1.1 Intended use
The VR control device is for automatically control-
ling pressure boosting systems consisting of 1 to
4 pumps with integrated frequency converters of
the WILO- MVIE, MVISE, MHIE and HELIX VE series
or external frequency converters. These operating
instructions only apply to operation with WILO
pumps with integrated frequency converters.
If external frequency converters are used, the cor-
responding installation and operating instructions
are to be taken into account.
Water supply and pressure boosting in residential,
commercial and public buildings, hotels, hospitals,
department stores and for industrial systems are
the fields of application.
1.2.2 Connection and technical data
Operating voltages:
Frequency:
Protection class:
Degree of contamination
Maximum ambient temperature:
Pressure sensor:
Mains-side fuse protection:
Further electrical technical data can be found on
the technical data sheet or rating plate.
Please state all the information on the system rat-
ing plate when ordering spare parts.
2 Safety
These operating instructions contain basic infor-
mation which must be adhered to during installa-
tion, operation and maintenance. For this reason,
these operating instructions must, without fail, be
read by the service technician and the responsible
specialist/operator before installation and com-
missioning.
It is not only the general safety instructions listed
under the main point "safety" that must be adhered
to but also the special safety instructions with dan-
ger symbols included under the following main
points.
2.1 Indication of instructions in the operating
instructions
Symbols:
General danger symbol
Danger due to electrical voltage
NOTE!
Installation and operating instructions Wilo VR System
1.2 Product information
1.2.1 Type key
Device designation
1 for 1 pump
2 for 2 pumps
3 for 3 pumps
4 for 4 pumps
Power P
of the pumps that can be used
2
(see catalogue/data sheet for selection)
WA = Wall-mounted installation
1~230 V (L1, N, PE)
3~400 V (L1, L2, L3, PE)
50/60 Hz
IP 54
3
40 °C
P: 0 – 6 bar, 0 – 10 bar, 0 – 16 bar, 0 –25 bar
I: 4 – 20 mA
according to wiring diagram included
• Direction of rotation arrow
• Identification for connections
• Rating plate
• Warning sticker
When used in conjunction with suitable signal trans-
mitters, the pumps offer low-noise and energy-
saving operation. The performance of the pumps
is adapted to the constantly changing require-
ments in the pressure boosting system.
VR-Control 4 x 1.1KW WA
Signal words:
DANGER!
Acutely dangerous situation.
Non-observance results in death or the most
serious of injuries.
WARNING!
The user can suffer (serious) injuries. 'Warning'
implies that (serious) injury to persons is proba-
ble if this note is disregarded.
CAUTION!
There is a risk of damaging the product/unit.
'Caution' concerns possible damage to the prod-
uct that could occur if this note is disregarded.
NOTE:
Useful information on handling the product. It draws
attention to possible problems.
Information that appears directly on the product,
such as
must be strictly complied with and kept in legible
condition.
English
17
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Do you have a question about the Wilo-VR-System and is the answer not in the manual?
Questions and answers
Gets up 1.3 bar cuts out
The Wilo-VR-System cuts out at 1.3 bar because an overpressure threshold is set to protect the building installation. If the system pressure rises above this threshold for three seconds, the pumps in operation are switched off immediately, and the collective fault signal and overpressure LED are activated. The system restarts one second after the pressure falls below the threshold.
This answer is automatically generated